Evolution of tuberculin sensitivity with advancing age. A three-year follow-up study.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology*; D000917:Antibody Formation / Q000502:physiology; D005260:Female; D006801:Humans; D007109:Immunity / Q000502:physiology; D008875:Middle Aged; D013223:Statistics as Topic; D014374:Tuberculin Test